> I know a few people who go to McD because "you know what you'll get"

Funny that the last times I did that, I didn't get what I expect. Broken machines (not only ice-cream), missing products, and it seems it was harder on the stomach as well, etc.

I just gave up on it if it doesn't even do that anymore.

There are better choices, even around BK, AW, Quick in Europe, etc